WTF is wrong with my camera - DPChallenge Forums

03/20/2006 05:52:41 PM · #26

I just found something in my menu called Pixel Count Compression. I put it at 3200x2400, but what should I put the second box at? It gives me 1/2.3, 1/8, and 1/4 as options. It WAS set at 1280x960 and 1/8. I'm pretty sure I don't want it at that considering it's supposed to be at SHQ 3264x2448. I'm wondering if this is yet another setting that person monkied around with...

Pentax SMC DA 18-55mm f3.5-5.6 AL WR

03/20/2006 06:02:58 PM · #27

This is the Manual for your camera. I found this in there

I think you may have found your problem!

Not the exact manual but you get the Idea

Message edited by author 2006-03-20 18:05:31.

Prism

Pentax K-30

03/20/2006 06:06:25 PM · #28

Looking at some of the shots that you have uploaded for challenges, you seem to have really high compression on them. For instance, on your Square Crop entry, the file size is only 15kb (not 150kb as allowed). It may not be your camera that is the problem at all but your post processing steps.

Pentax SMC DA 18-55mm f3.5-5.6 AL WR

03/20/2006 06:18:04 PM · #29

Grandwazoo, my manual might as well be in Greek for all the sense it makes to me.

Prism, I do tend to use "Size For Web" just because I've got a crappy dial-up connection, and pictures take forever to upload otherwise. Though, I did not use "Size for Web" on 2 second challenge.

I have to bring my laptop to work tomorrow because I have pictures I want to upload to the stock sites (one picture can take up to an hour at home). I have a couple of print requests that I have to e-mail to Costco because they can't handle prints that big in store. Here at work, I can pick up our neighbor's high speed wireless signal. It's a good thing I'm not into bootlegging music or movies.

Message edited by author 2006-03-20 18:20:29.

Prism

Pentax K-30

03/20/2006 06:21:00 PM · #30

Even with using size for web, you can still optimize it to 150kb. At the small file size you are uploading, your shots will appear a lot more pixelized from the compression. Can you save at a higher file size with some of the samples that you posted earlier just to see if it makes a difference?

03/20/2006 06:51:40 PM · #31

I'll try it as soon as I get home.

Pentax SMC DA 18-55mm f3.5-5.6 AL WR

03/20/2006 10:07:04 PM · #32

Here's a couple of examples of what I've been talking about. Both of these are at ISO 100, f8. The first one was shutter speed 1/40, using a tripod, no flash. The second one, is shutter speed 160 using a flash:

Prism

Pentax K-30

03/20/2006 10:25:10 PM · #33

Originally posted by kirbic:

Some advice on the uploads:
- Do post the shots like you have, but make sure the file size is between 100k and 150k; as previously pointed out, JPEG artifacts are making it very hard to judge quality.
- Select a high-detail spot in both and crop out a 640x640px area from the original. Post this without resizing and at a file size between 100 and 150k.
- Select an area where you feel noise is an issue and post a 640px crop as above.

The above is a good alternative to posting the originals, and will give us a better chance of diagnosing the problem.

Try posting a shot using what Kirbic has detailed above. How are you releasing the shutter with your camera on the tripod? Are you using the camera self timer, a remote release or still pushing the button?

03/20/2006 10:26:42 PM · #34

Set you camera to 3264 x 2448 Uncompressed Tiff. It will give you the max file size and resolution around 23 meg . Then you can size and save as suggested earlier in the post.

Your settings SHQ 3264x2448 mode, gives an average image size of around 3Mb - 3.5Mb.

Message edited by author 2006-03-20 22:27:20.

03/20/2006 10:38:02 PM · #35

Originally posted by Prism:

Originally posted by kirbic:
Some advice on the uploads:
- Do post the shots like you have, but make sure the file size is between 100k and 150k; as previously pointed out, JPEG artifacts are making it very hard to judge quality.
- Select a high-detail spot in both and crop out a 640x640px area from the original. Post this without resizing and at a file size between 100 and 150k.
- Select an area where you feel noise is an issue and post a 640px crop as above.

The above is a good alternative to posting the originals, and will give us a better chance of diagnosing the problem.

Try posting a shot using what Kirbic has detailed above. How are you releasing the shutter with your camera on the tripod? Are you using the camera self timer, a remote release or still pushing the button?

Those examples are out of camera. They haven't been altered at all except to crop them.

If I change my camera to TIFF will it effect the pictures already in the card, or just fiture pictures?

Message edited by author 2006-03-20 22:38:42.

03/20/2006 11:16:55 PM · #36

It should only affect future pictures. But why not copy all the images to your computer and start fresh. :)

03/21/2006 01:09:00 PM · #37

Hey ragamuffingirl did it work is your camera better?

Azrifel

Fujifilm X100VI

03/21/2006 01:25:56 PM · #38

For ISO100 those samples have quite a lot of chroma noise.